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Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 6535513328

Certificate GIA 6535513328

Diamond specifications and retailer prices

From HK$23,953 HKD
$3,053 USD
As of October 31, 2026
Save HK$30,350 HKD (56%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: HK$54,303 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6535513328. Listed at 28 retailers as of October 30, 2026, with prices from HK$23,953 to HK$54,303, a HK$30,350 spread on the same certified stone. NZ Jewellers lists it at HK$54,303. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.83°
Pavilion angle30.94°
OriginNatural
Grading LabGIA
CertificateGIA 6535513328
Dimensions7.22 × 5.66 × 3.94 mm
L/W Ratio1.28
Top View
7.22 mm5.66 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535513328
Side View
Table 65.0%Crown 44.83°Girdle: THK-VTHPavilion 30.94°Culet: NoneDepth 69.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$54,303 HKD|Low: HK$21,043 HKD|High: HK$54,303 HKD|Avg: HK$32,230 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
November 2, 2026
Retailer 12HK$23,953 HKD
Retailer 8HK$24,558 HKD
Retailer 2HK$24,565 HKD
Retailer 11HK$24,731 HKD
Retailer 7HK$25,060 HKD
Retailer 10HK$26,065 HKD
Retailer 24HK$27,148 HKD
Retailer 6HK$28,238 HKD
Retailer 14HK$28,238 HKD
Retailer 9HK$28,267 HKD
Retailer 16HK$28,615 HKD
Retailer 23HK$29,321 HKD
Retailer 25HK$30,710 HKD
Retailer 15HK$30,835 HKD
Retailer 20HK$31,882 HKD
Retailer 5HK$31,934 HKD
Retailer 26HK$31,934 HKD
Retailer 4HK$32,577 HKD
Retailer 3HK$33,032 HKD
Retailer 17HK$33,363 HKD
Retailer 19HK$34,339 HKD
Retailer 13HK$34,354 HKD
Retailer 22HK$38,310 HKD
Retailer 18HK$45,040 HKD
Retailer 21HK$52,125 HKD
NZ JewellersHK$54,303 HKD

33 data points across 26 retailers

28 retailersHK$23,953 HKD to HK$54,303 HKD

A
Cheapest Retailer
-
HK$23,953 HKD
$3,053 USD
A
Retailer 2
-
HK$24,558 HKD
$3,130 USD
View
A
Retailer 3
-
HK$24,565 HKD
$3,131 USD
View
A
Retailer 4
-
HK$24,731 HKD
$3,152 USD
View
A
Retailer 5
-
HK$25,060 HKD
$3,194 USD
View
A
Retailer 6
-
HK$26,065 HKD
$3,322 USD
View
Final sale: no returns
A
Retailer 7
-
HK$27,148 HKD
$3,460 USD
View
A
Retailer 8
-
HK$28,238 HKD
$3,599 USD
View
A
Retailer 9
-
HK$28,238 HKD
$3,599 USD
View
A
Retailer 10
-
HK$28,267 HKD
$3,603 USD
View
Retailer 11
-
HK$28,615 HKD
$3,647 USD
View
Price last confirmed 10 days ago
A
Retailer 12
-
HK$29,321 HKD
$3,737 USD
View
B+
Retailer 13
-
HK$30,710 HKD
$3,914 USD
View
B+
Retailer 14
-
HK$30,835 HKD
$3,930 USD
View
B+
Retailer 15
-
HK$31,661 HKD
A$6,208 AUD
View
B+
Retailer 16
-
HK$31,882 HKD
£3,200 GBP
View
B+
Retailer 17
-
HK$31,934 HKD
$4,070 USD
View
B+
Retailer 18
-
HK$31,934 HKD
$4,070 USD
View
B+
Retailer 19
-
HK$32,577 HKD
$4,152 USD
View
B+
Retailer 20
-
HK$33,032 HKD
$4,210 USD
View
B+
Retailer 21
-
HK$33,363 HKD
$4,252 USD
View
Retailer 22
-
HK$34,339 HKD
A$6,733 AUD
View
Price last confirmed 29 days ago
B+
Retailer 23
-
HK$34,354 HKD
€4,170 EUR
View
Retailer 24
-
HK$35,276 HKD
$4,496 USD
View
Price last confirmed 57 days ago
B+
Retailer 25
-
HK$38,310 HKD
ZAR 78,880 ZAR
View
Retailer 26
-
HK$45,040 HKD
$5,740 USD
View
Price last confirmed 7 days ago
B
Retailer 27
-
HK$52,125 HKD
£5,231 GBP
View
Most Expensive
B
NZ Jewellers
ab8e341f-9ded-4f5f-a81b-1fa39f0abccc · Oct 30
HK$54,303 HKD
$6,921 USD
View
27 more retailers have this diamond
Prices start from HK$23,953 HKDSave up to HK$30,350 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Radiant
HK$23,953 HKD